In your zone, the trailer is your guy on the rush. Off the face off, the other C is your guy. Down low, the extra man is your guy....you need to help your D in the corners. If one of them gets caught in no man's land, you are the guy that has to cover the front of the net.
(Obviously you know where a winger is supposed to be, at the point.)

Depending on who your wingers are, best for you to be the trailer coming in on the rush. It allows you to curl and pick up their extra guy on the rush. If you go deep and one of your wingers don't have your back, it is the odd man rush going the other way.

You can always work it out with your wingers that if you get caught deep, then someone has to cover your butt on the way back.